78 research outputs found
Implementation of sustainable systems towards Net Zero Energy Infrastructures methodology and design criteria
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The large la Braida complex earthflow (South Italy): geomorphological evolution and hazard evaluation by a cellular automata model.
No full textAn operative framework to support implementation plan design applied in transnational cooperation project
No full textTerritorial cooperation across national borders has the task to bring a real European added value [1, 2] in pursuing the goal of territorial cohesion and in balancing spatial development of the EU territory [3] through common development strategies. Although INTERREG programs do not constitute a big share of the Structural Fund budget (only 2.5% of the total Structural Funds Budget for 2007â2013 and the 2.8% of the total of the European Cohesion Policy budget for 2014â2020 [4], they play a key role in the main stream policies development. One of the innovations promoted in the 2014â2020 programming period is to reinforce the operational dimension of INTERREG measures and projects. In fact, INTERREG Projects not only required to demonstrate a positive impact on the development of transnational approaches and solutions to targeted issues but their concrete actions design and, possibly, consequent implementation must be carried out on a common cross-border basis. Such procedural schema is based on the design of an Implementation Plan (IP) at project partners level and its implementation within project timeframe. Hence the need for a detailed and organized methodological schema which could support and enable the effectiveness application of IPs delivered by transnational cooperation projects. This paper provides contributions to support and improve the IPs design practices according to several techniques and recommendations also retrieved in previous relevant transnational cooperation experiences
Accelerating the low-carbon transition: Technological advancements and challenges for the sustainable development of energy, water, and environment systems
No full textDental Arch3D Direct Detection System from the Patient’s Mouth and Robot for Implant Positioning
No full textDesign and development of an optical system for 3D direct detection of dental arch model from the patient's mouth and a robotic system for guiding implant positioning
No full textSustainability and energy self-sufficiency assessment for small islands by adopting dynamic simulation approach
No full textSmall islands are usually characterized by high energy demand and no electricity network access with a consequent high fossil fuel energy consumption. This issue could be overcome by increasing the adoption of renewable energy systems and by enhancing the systems’ energy efficiencies. In this framework, the adoption of dynamic simulation and optimization analyses is crucial. For such a reason, in this paper, a novel approach based on dynamic simulation is presented and a suitable case study is conducted. Such an approach is developed with the twofold aim of increasing renewable energy penetration and improving the sustainability of small islands. The convenience in the dynamic simulation adoption is proven by investigating a suitable case study referring to the existing island community of El Hierro. The case study analysis focuses on the feasibility of converting its energy systems into an autonomous one by mixing different renewable-based technologies to traditional ones. The considered polygeneration system includes: i) wind turbines; ii) hydroelectric plants; iii) diesel engines; iv) solar thermal collectors; properly mixed to satisfy the electricity and hot water needs. Furthermore, to identify optimal configurations and maximize the share of renewable energy, a suitable parametric analysis is presented. Also, a hypothetical future scenario characterized by an island population increase is also investigated. Numerical results demonstrate the feasibility of the investigated polygeneration system, as well as the potentiality of the proposed methodology. Specifically, the dynamic simulation approach allows one to determine design criteria and to properly obtain a remarkable increase in terms of renewable energy exploitation and energy independence. In particular, the considered system configuration provides up to 85% of the annual electricity demand and about 82% of the annual thermal energy needs by renewable sources with substantial economic savings
A novel dynamic simulation approach for the waste heat energy recovery of modern cruise ships sailing in the Northern sea
No full textIn the last years, the International Maritime Organization has been imposing severe and restrictive regulations on pollutant emissions to reduce the environmental impact of modern ships. Thus, the sustainable design of modern cruise ships is crucial to comply with these regulations. In this paper, a novel approach for assessing the potentiality of energy-saving technologies and strategies for ship applications is presented. This approach is based on dynamic simulation, and it is implemented in a suitable tool assembled in TRNSYS environment. Here, the ship-envelope as well as the related ship energy plant systems are modelled and simulated. Also, to consider different ship routes and relative dynamic boundary conditions variations during the cruise, a suitable tool capable of producing customized weather data is developed.
To show the effectiveness of the proposed approach, a novel case study is presented. It refers to a modern cruise ship fuelled by liquified natural gas cruising in Norwegian fjords sea. Here, the waste heat of exhaust gases and engine jacket water of LNG engines are exploited to supply different thermally activated devices. Specifically, heat exchangers are adopted for supplying hot water to air-handler units; multi-stage flash distillation systems are adopted for freshwater production whereas steam turbine system, organic Rankine cycle device and molten carbon fuel cells are utilized for electricity production. Suitable control and decision strategies for optimizing the waste heat recovery are implemented. Eight different system layouts are analysed and promising results in terms of primary energy savings (18.1%), avoided pollutants emission (24.4 ktCO2/y, 40.0 tNOx, 90.0 tSOx, 84.0 tPM2.5) and simple payback (0.68 y) are achieved
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